Personally I seriously doubt that the market for big V8s is anywhere near large enough to support a manufacturer like TVR, but I'd love to see the research if it demonstrates otherwise.
I'm afraid that this is the rub. Times have changed so quickly since this re-birth of TVR was first envisaged. The goalposts have been moved, and the market for large thirsty engines is dwindling rapidly; as we all know, in 10 years time it won't even be possible to sell a pure ICE car. Unless TVR can conclude a deal with a supplier to provide them with hybrid technology, the whole thing is a busted flush.